Year	Number
1996	36.1809043884277
1998	37
2000	39.8009948730469
2002	55.7213935852051
2003	68.1592025756836
2004	71.1538467407227
2005	56.9377975463867
2006	49.2822952270508
2007	46.8899536132813
2008	53.8461532592773
2009	62.0853080749512
2010	62.0853080749512
2011	62.4413146972656
2012	61.5023460388184
2013	60.0938949584961
2014	73.0769195556641
2015	69.523811340332
2016	65.2380981445313
2017	67.1428604125977
2018	72.8571395874023
2019	70
2020	67.1428604125977
2021	65.7142868041992
2022	65.0943374633789